Title:
クローラ式作業車両
Document Type and Number:
Japanese Patent JP6683595
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve strength of a jack-up device and achieve weight reduction.SOLUTION: Each of plural jack-up devices 23 of a crawler crane 101 includes: a jack frame 41 attached to a center portion of each of front and rear ends of a car body 21; a jack beam 42 extending in a horizontal direction from the jack frame 41; a jack cylinder 43 separated from the jack frame 41 and extending/contracting in a vertical direction; a support shaft 44 axially supporting the jack beam 42 so as to be rotatable within a horizontal plane with respect to the jack frame 41; a jack-beam side fixing pin 62 fixed at a position distant from the support shaft 44 on an upper surface of the jack beam 42; a jack-frame side fixing pin 63 fixed to an upper surface of the jack frame 41; and a plate-shaped link member 61 connecting the jack-beam side fixing pin 62 to the jack-frame side fixing pin 63.SELECTED DRAWING: Figure 4
Inventors:
Masanori Watanabe
Junichi Hizawa
Takuya Matsui
Junichi Hizawa
Takuya Matsui
Application Number:
JP2016251459A
Publication Date:
April 22, 2020
Filing Date:
December 26, 2016
Export Citation:
Assignee:
Sumitomo Heavy Industries Construction Crane Co., Ltd.
International Classes:
B62D55/06; B60S9/12; B62D21/18; B62D55/32; E02F9/02
Domestic Patent References:
| JP55161744U | ||||
| JP2014129079A | ||||
| JP10148975A |
Attorney, Agent or Firm:
Patent Business Corporation Takewa International Patent Office